WO2024040490A1 - 发声器件 - Google Patents

发声器件 Download PDF

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Publication number
WO2024040490A1
WO2024040490A1 PCT/CN2022/114673 CN2022114673W WO2024040490A1 WO 2024040490 A1 WO2024040490 A1 WO 2024040490A1 CN 2022114673 W CN2022114673 W CN 2022114673W WO 2024040490 A1 WO2024040490 A1 WO 2024040490A1
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WO
WIPO (PCT)
Prior art keywords
magnet
fixed
magnetic
sound
generating device
Prior art date
Application number
PCT/CN2022/114673
Other languages
English (en)
French (fr)
Inventor
吕雪冬
冯小琼
杨坤
黄振
邵益
Original Assignee
瑞声光电科技(常州)有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
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Application filed by 瑞声光电科技(常州)有限公司 filed Critical 瑞声光电科技(常州)有限公司
Priority to PCT/CN2022/114673 priority Critical patent/WO2024040490A1/zh
Priority to US18/097,460 priority patent/US20240073622A1/en
Publication of WO2024040490A1 publication Critical patent/WO2024040490A1/zh

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R9/00—Transducers of moving-coil, moving-strip, or moving-wire type
    • H04R9/02—Details
    • H04R9/025—Magnetic circuit
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R9/00—Transducers of moving-coil, moving-strip, or moving-wire type
    • H04R9/02—Details
    • H04R9/04—Construction, mounting, or centering of coil
    • H04R9/046—Construction
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R7/00—Diaphragms for electromechanical transducers; Cones
    • H04R7/16—Mounting or tensioning of diaphragms or cones
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R9/00—Transducers of moving-coil, moving-strip, or moving-wire type
    • H04R9/02—Details
    • H04R9/04—Construction, mounting, or centering of coil
    • H04R9/045—Mounting
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R9/00—Transducers of moving-coil, moving-strip, or moving-wire type
    • H04R9/06—Loudspeakers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R9/00—Transducers of moving-coil, moving-strip, or moving-wire type
    • H04R9/06—Loudspeakers
    • H04R9/063—Loudspeakers using a plurality of acoustic drivers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R2400/00—Loudspeakers
    • H04R2400/11—Aspects regarding the frame of loudspeaker transducers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R2499/00—Aspects covered by H04R or H04S not otherwise provided for in their subgroups
    • H04R2499/10—General applications
    • H04R2499/11—Transducers incorporated or for use in hand-held devices, e.g. mobile phones, PDA's, camera's
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R7/00—Diaphragms for electromechanical transducers; Cones
    • H04R7/02—Diaphragms for electromechanical transducers; Cones characterised by the construction
    • H04R7/04—Plane diaphragms

Definitions

  • the utility model relates to the technical field of electroacoustic conversion, and in particular to a sound-generating device used in a portable mobile terminal.
  • the magnetic circuit system of a double-sided sound-generating device includes a main magnet located in the middle position.
  • the amount of steel may increase the volume of the main magnet, which will inevitably increase the size of the sound-generating device, which is not conducive to thinning and lightness.
  • This utility model is to provide a sound-generating device with better acoustic performance.
  • the present utility model proposes a sound-generating device, which includes a basin frame with a receiving space, a magnetic circuit system contained in the receiving space, and first vibration systems respectively provided on both sides of the magnetic circuit system. and a second vibration system.
  • the magnetic circuit system includes a first central magnetic yoke located in the middle position, a central magnetic steel fixed to the first central magnetic yoke, a central magnetic steel surrounding the central magnetic steel and fixed to the basin.
  • the side magnet steel assembly of the frame and the connecting portion connecting the first center yoke and the side magnet steel assembly, the center magnet and the side magnet steel assembly are spaced apart to form a magnetic gap;
  • the first vibration system includes a first diaphragm fixed on the basin frame and a first voice coil that drives the first diaphragm to vibrate and produce sound, and the first voice coil is inserted in the magnetic gap;
  • the second vibration system includes a second diaphragm fixed to the basin frame and a second voice coil that drives the second diaphragm to vibrate and produce sound, and the second voice coil is inserted in the magnetic gap;
  • the center magnet steel includes a first magnet part fixed on the first center yoke and a second magnet part fixed on a side of the first magnet part away from the first center yoke.
  • the first magnet The projected area of the second magnet portion along the vibration direction is greater than the projected area of the second magnet portion along the vibration direction.
  • the magnetic gap includes a first magnetic gap formed by the first magnet part and the side magnet steel assembly being spaced apart, and a third magnetic gap formed by the second magnet part being spaced apart from the side magnet steel assembly. Two magnetic gaps, the first voice coil is inserted in the first magnetic gap, and the second voice coil is inserted in the second magnetic gap.
  • the side magnet assembly includes a side magnet fixed to the basin frame, a first side magnetic conductive plate fixed to the side of the side magnet facing the first diaphragm, and a first side magnetic plate fixed to the side.
  • the magnetic steel faces the second side magnetic conductive plate on one side of the second diaphragm, and the connecting portion connects the second side magnetic conductive plate and the first center yoke.
  • connection part includes a first connection part connected to the first center yoke, a second connection part connected to the second side magnetic conductive plate, and a first connection part connected to the second side magnetic conductive plate.
  • the third connection part of the connection part, the first connection part is fixed on the surface of the first center yoke facing the center magnet steel, and the second connection part is fixed on the second side magnetic conductive plate facing the surface. The surface of the first center yoke.
  • the third connecting portion extends along the vibration direction.
  • the basin frame is rectangular, and the connecting portion is connected to the edges of the second side magnetic conductive plate and the first center yoke along the short axis direction.
  • the magnetic circuit system further includes a second center yoke fixed on the side of the second magnet part away from the first center yoke.
  • the basin frame includes a first bracket and a second bracket connected to each other, the first diaphragm is fixed on the surface of the first bracket away from the second bracket, and the second diaphragm is fixed on the surface of the first bracket away from the second bracket.
  • the second bracket is away from the surface of the first bracket.
  • the side magnets include a first side magnet arranged along the long axis direction and a second side magnet arranged along the short axis direction.
  • the first side magnets include four, and two of the first side magnets are provided in each long axis direction of the basin frame.
  • the sound-generating device provided by the present utility model includes a first vibration system and a second vibration system located on both sides of a magnetic circuit system.
  • the magnetic circuit system includes a first central yoke located in the middle position, a first central yoke fixed on The center magnet of the first center yoke, the magnetic assembly surrounding the center magnet and fixed to the basin frame, and the connecting portion connecting the first center yoke and the side magnet assembly,
  • the center magnet is spaced apart from the side magnet components to form a magnetic gap;
  • the center magnet includes a first magnet portion fixed to the first center yoke and a first magnet portion fixed to the first magnet portion away from the third
  • a second magnet part on one side of the central yoke the projected area of the first magnet part along the vibration direction is larger than the projected area of the second magnet part along the vibration direction.
  • the volume of the central magnet is effectively increased, and the magnetic field performance of the magnetic circuit system is improved in a limited space design, thereby improving the acoustic performance of the sound-generating device.
  • Figure 1 is a perspective view of the sound-generating device in the utility model
  • Figure 2 is an exploded view of the sound-generating device in the present utility model
  • Figure 3 is a cross-sectional view along line A-A in Figure 1;
  • FIG. 4 is a cross-sectional view along line B-B in FIG. 1 .
  • the present invention provides a sound-generating device 100, which includes a basin frame 1 with a receiving space 10, a magnetic circuit system 2 contained in the receiving space 10, and a sound-generating device 100 provided in the receiving space 10.
  • the first vibration system 3 and the second vibration system 4 on both sides of the magnetic circuit system 2; the first vibration system 3 and the second vibration system 4 are respectively fixed on the opposite sides of the basin frame 1.
  • the basin frame 1 includes a first bracket 11 and a second bracket 2 that are connected to each other.
  • the first vibration system 3 is fixed on the surface of the first bracket 11 away from the second bracket 12 .
  • the two vibration systems 4 are fixed on the surface of the second bracket 12 away from the first bracket 11 .
  • the magnetic circuit system 2 includes a first central magnetic yoke 21 located in the middle position, a central magnetic steel 22 fixed on the first central magnetic yoke 21, and a central magnetic steel 22 fixed on the central magnetic steel 22 away from the first central magnetic yoke.
  • the second center yoke 23 on the 21 side, the side magnet assembly 24 surrounding the center magnet 22 and fixed to the basket 1 and connecting the first center yoke 21 and the side magnets The connecting portion 25 of the assembly 24; wherein, the center magnet 22 and the side magnet assembly 24 are spaced apart to form a magnetic gap 26.
  • the first vibration system 3 includes a first diaphragm 31 fixed on the first bracket 11 and a first voice coil 32 that drives the first diaphragm 31 to vibrate and produce sound.
  • the first voice coil 32 is inserted in The magnetic gap 26.
  • the second vibration system 4 includes a second diaphragm 41 fixed on the second bracket 12 and a second voice coil 42 that drives the second diaphragm 41 to vibrate and produce sound.
  • the second voice coil 42 is inserted in The magnetic gap 26.
  • the center magnet 22 includes a first magnet part 221 fixed on the first center yoke 21 and a second magnet part 221 fixed on the side of the first magnet part 221 away from the first center yoke 21 .
  • Magnet part 222 the projected area of the first magnet part 221 along the vibration direction is greater than the projected area of the second magnet part 222 along the vibration direction; it can also be considered that the width of the first magnet part 221 along the vertical vibration direction is greater than The width of the second magnet portion 222 is along the vertical vibration direction.
  • the basin frame 1 is in a rectangular shape, and accordingly, the first magnet part 221 and the second magnet part 222 are also in a rectangular shape, that is, the first magnet part 221 is rectangular in shape along the long axis.
  • the width is greater than the width of the second magnet portion 222 along the long axis direction, and the width of the first magnet portion 221 along the short axis direction is also greater than the width of the second magnet portion 222 along the long axis direction.
  • the magnetic gap 26 includes a first magnetic gap 261 formed by the first magnet part 221 and the side magnet steel assembly 24 being spaced apart, and a first magnetic gap 261 formed by the second magnet part 222 and the side magnet steel assembly.
  • the second magnetic gaps 262 are formed at intervals of 24, the first voice coil 32 is inserted in the first magnetic gap 261, and the second voice coil 42 is inserted in the second magnetic gap 262.
  • the side magnet steel assembly 24 includes a side magnet 241 fixed to the basin frame 1 , a first side magnetic conductive plate 242 fixed to the side of the side magnet 241 facing the first diaphragm 31 , and a side magnet 242 fixed to the side of the side magnet 241 facing the first diaphragm 31 .
  • the side magnet steel 241 faces the second side magnetic conductive plate 243 on one side of the second diaphragm 41 , and the connecting portion 25 connects the second side magnetic conductive plate 243 and the first center yoke 21 .
  • the connecting portion 25 is connected to the second side magnetic conductive plate 243 and the edge of the first center yoke 21 along the short axis direction.
  • the connecting part 25 includes a first connecting part 251 connected to the first center yoke 21 and a second connecting part 252 connected to the second side magnetic conductive plate 243, and a connecting part connecting the first connecting part 251 and The third connection part 253 of the second connection part 252, the first connection part 251 is fixed on the surface of the first center yoke 21 facing the center magnet 22, the second connection part 252 is fixed on The second side magnetic conductive plate 243 faces the surface of the first center yoke 21 . Further, the third connecting portion 253 extends along the vibration direction.
  • the side magnets 241 include a first side magnet 2411 arranged along the long axis direction and a second side magnet arranged along the short axis direction. 2412; Specifically, the first side magnets 2411 include four, and two of the first side magnets 2411 are provided in each long axis direction of the basin frame 1 .
  • the sound-generating device provided by the present utility model includes a first vibration system and a second vibration system located on both sides of a magnetic circuit system.
  • the magnetic circuit system includes a first central yoke located in the middle position, a first central yoke fixed on The central magnetic steel of the first central magnetic yoke, the magnetic component surrounding the central magnetic steel and fixed to the basin frame, and the connecting portion connecting the first central magnetic yoke and the magnetic component,
  • the central magnetic steel is spaced apart from the magnetic component to form a magnetic gap;
  • the central magnetic steel includes a first magnet part fixed on the first central yoke and a first magnet part fixed on the first central yoke away from the first central yoke
  • the projected area of the first magnet part along the vibration direction is larger than the projected area of the second magnet part along the vibration direction.
  • the volume of the central magnet is effectively increased, and the magnetic field performance of the magnetic circuit system is improved in a limited space design, thereby improving the acoustic performance of the sound-generating device.

Abstract

本实用新型提供的发声器件包括盆架、磁路系统以及分别设于所述系统两侧的第一振动系统和第二振动系统，所述磁路系统包括位于中间位置的第一中心磁轭、固定于所述第一中心磁轭的中心磁钢、环设于所述中心磁钢且固定于所述盆架的磁性组件以及连接所述第一中心磁轭与所述磁性组件的连接部；所述中心磁钢包括固定于所述第一中心磁轭的第一磁体部以及固定于所述第一磁体部远离所述第一中心磁轭一侧的第二磁体部，所述第一磁体部沿振动方向的投影面积大于所述第二磁体部沿振动方向的投影面积。通过设置投影面积比第二磁体部更大的第一磁体部，有效增大了中心磁钢的体积，在有限的空间设计中提升了磁路系统的磁场性能，从而提升了发声器件的声学性能。

Description

发声器件 技术领域
本实用新型涉及电声转换技术领域，尤其涉及一种用于便携式移动终端的发声器件。
 背景技术
随着便携式移动终端技术的发展，人们对便携式移动终端的音效要求越来越高；与此同时，随着便携式移动终端轻薄化发展，发声器件也同样需要顺应轻薄化的发展潮流。
 技术问题
在现有的发声器件中，为了在提升发声器件的声学性能，通常采用双振膜双面发声的技术方案；一般来说，双面发声的发声器件的磁路系统包括位于中间位置的主磁轭和固定于主磁轭的主磁钢以及环设于所述主磁钢周围与主磁钢形成磁间隙的边磁轭，在此基础上要增强磁场性能从而提升声学性能，就需要增加磁钢的数量或增大主磁钢的体积，这势必会使得发声器件的体积增大，不利于轻薄化。
因此，实有必要提供一种新的发声器件解决上述技术问题。
 技术解决方案
本实用新型的目的在于提供一种声学性能较佳的发声器件。
为了达到上述目的，本实用新型提出一种发声器件，其包括具有收容空间的盆架、收容于所述收容空间内的磁路系统以及分别设于所述磁路系统两侧的第一振动系统和第二振动系统， 所述磁路系统包括位于中间位置的第一中心磁轭、固定于所述第一中心磁轭的中心磁钢、环设于所述中心磁钢且固定于所述盆架的边磁钢组件以及连接所述第一中心磁轭与所述边磁钢组件的连接部，所述中心磁钢与所述边磁钢组件间隔形成磁间隙；
所述第一振动系统包括固定于所述盆架的第一振膜以及驱动所述第一振膜振动发声的第一音圈，所述第一音圈插设于所述磁间隙；
所述第二振动系统包括固定于所述盆架的第二振膜以及驱动所述第二振膜振动发声的第二音圈，所述第二音圈插设于所述磁间隙；
所述中心磁钢包括固定于所述第一中心磁轭的第一磁体部以及固定于所述第一磁体部远离所述第一中心磁轭一侧的第二磁体部，所述第一磁体部沿振动方向的投影面积大于所述第二磁体部沿振动方向的投影面积。
优选的，所述磁间隙包括由所述第一磁体部与所述边磁钢组件间隔设置形成的第一磁间隙以及由所述第二磁体部与所述边磁钢组件间隔设置形成的第二磁间隙，所述第一音圈插设于所述第一磁间隙，所述第二音圈插设于所述第二磁间隙。
优选的，所述边磁钢组件包括固定于所述盆架的边磁钢、固定于所述边磁钢朝向所述第一振膜一侧的第一边导磁板以及固定于所述边磁钢朝向所述第二振膜一侧的第二边导磁板，所述连接部连接所述第二边导磁板和所述第一中心磁轭。
优选的，所述连接部包括与所述第一中心磁轭连接的第一连接部与所述第二边导磁板连接的第二连接部以及连接所述第一连接部和所述第二连接部的第三连接部，所述第一连接部固定于所述第一中心磁轭朝向所述中心磁钢的表面，所述第二连接部固定于所述第二边导磁板朝向所述第一中心磁轭的表面。
优选的，所述第三连接部沿振动方向延伸。
优选的，所述盆架呈矩形，所述连接部连接于所述第二边导磁板和所述第一中心磁轭沿短轴方向的边缘。
优选的，所述磁路系统还包括固定于所述第二磁体部远离所述第一中心磁轭一侧的第二中心磁轭。
优选的，所述盆架包括相互连接的第一支架和第二支架，所述第一振膜固定于所述第一支架远离所述第二支架的表面，所述第二振膜固定于所述第二支架远离所述第一支架的表面。
优选的，所述边磁钢包括沿长轴方向设置的第一边磁钢以及沿短轴方向设置的第二边磁钢。
优选的，所述第一边磁钢包括四个，所述盆架的每一长轴方向设置有两个所述第一边磁钢。
 有益效果
与相关技术相比，本实用新型提供的发声器件包括设于磁路系统两侧的第一振动系统和第二振动系统，所述磁路系统包括位于中间位置的第一中心磁轭、固定于所述第一中心磁轭的中心磁钢、环设于所述中心磁钢且固定于所述盆架的磁性组件以及连接所述第一中心磁轭与所述边磁钢组件的连接部，所述中心磁钢与所述边磁钢组件间隔形成磁间隙；所述中心磁钢包括固定于所述第一中心磁轭的第一磁体部以及固定于所述第一磁体部远离所述第一中心磁轭一侧的第二磁体部，所述第一磁体部沿振动方向的投影面积大于所述第二磁体部沿振动方向的投影面积。通过设置投影面积比第二磁体部更大的第一磁体部，有效增大了中心磁钢的体积，在有限的空间设计中提升了磁路系统的磁场性能，从而提升了发声器件的声学性能。
 附图说明
为了更清楚地说明本实用新型实施例中的技术方案，下面将对实施例描述中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图仅仅是本实用新型的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图获得其它的附图，其中：
图1是本实用新型中发声器件的立体图；
图2是本实用新型中发声器件的爆炸图；
图3为图1中沿A-A线的剖视图；
图4为图1中沿B-B线的剖视图。
 本发明的最佳实施方式
下面将结合本实用新型实施例中的附图，对本实用新型实施例中的技术方案进行清楚、完整地描述。
如图1-图4所示，本实用新型提供了一种发声器件100，其包括具有收容空间10的盆架1、收容于所述收容空间10内的磁路系统2以及分别设于所述磁路系统2两侧的第一振动系统3和第二振动系统4；所述第一振动系统3和所述第二振动系统4分别固定于所述盆架1的相对两侧。具体的，所述盆架1包括相互连接的第一支架11和第二支架2，所述第一振动系统3固定于所述第一支架11远离所述第二支架12的表面，所述第二振动系统4固定于所述第二支架12远离所述第一支架11的表面。
所述磁路系统2包括位于中间位置的第一中心磁轭21、固定于所述第一中心磁轭21的中心磁钢22、固定于所述中心磁钢22远离所述第一中心磁轭21一侧的第二中心磁轭23、环设于所述中心磁钢22且固定于所述盆架1的边磁钢组件24以及连接所述第一中心磁轭21与所述边磁钢组件24的连接部25；其中，所述中心磁钢22与所述边磁钢组件24间隔形成磁间隙26。
所述第一振动系统3包括固定于所述第一支架11的第一振膜31以及驱动所述第一振膜31振动发声的第一音圈32，所述第一音圈32插设于所述磁间隙26。
所述第二振动系统4包括固定于所述第二支架12的第二振膜41以及驱动所述第二振膜41振动发声的第二音圈42，所述第二音圈42插设于所述磁间隙26。
具体的，所述中心磁钢22包括固定于所述第一中心磁轭21的第一磁体部221以及固定于所述第一磁体部221远离所述第一中心磁轭21一侧的第二磁体部222，所述第一磁体部221沿振动方向的投影面积大于所述第二磁体部222沿振动方向的投影面积；也可以认为，所述第一磁体部221沿垂直振动方向的宽度大于所述第二磁体部222沿垂直振动方向的宽度。可以理解的是，所述盆架1呈矩形，相应的，所述第一磁体部221和所述第二磁体部222也均呈矩形，即，所述第一磁体部221沿长轴方向的宽度大于所述第二磁体部222沿长轴方向的宽度，所述第一磁体部221沿短轴方向的宽度也大于所述第二磁体部222沿长轴方向的宽度。
由此，所述磁间隙26包括由所述第一磁体部221与所述边磁钢组件24间隔设置形成的第一磁间隙261以及由所述第二磁体部222与所述边磁钢组件24间隔设置形成的第二磁间隙262，所述第一音圈32插设于所述第一磁间隙261，所述第二音圈42插设于所述第二磁间隙262。
所述边磁钢组件24包括固定于所述盆架1的边磁钢241、固定于所述边磁钢241朝向所述第一振膜31一侧的第一边导磁板242以及固定于所述边磁钢241朝向所述第二振膜41一侧的第二边导磁板243，所述连接部25连接所述第二边导磁板243和所述第一中心磁轭21。所述连接部25连接于所述第二边导磁板243和所述第一中心磁轭21沿短轴方向的边缘。
具体的，所述连接部25包括与所述第一中心磁轭21连接的第一连接部251与第二边导磁板243连接的第二连接部252以及连接所述第一连接部251和所述第二连接部252的第三连接部253，所述第一连接部251固定于所述第一中心磁轭21朝向所述中心磁钢22的表面，所述第二连接部252固定于第二边导磁板243朝向所述第一中心磁轭21的表面。进一步的，所述第三连接部253沿振动方向延伸。
进一步的，为了提升所述发声器件100的磁路系统2的磁场性能，所述边磁钢241包括沿长轴方向设置的第一边磁钢2411以及沿短轴方向设置的第二边磁钢2412；具体的，所述第一边磁钢2411包括四个，所述盆架1的每一长轴方向设置有两个所述第一边磁钢2411。
与相关技术相比，本实用新型提供的发声器件包括设于磁路系统两侧的第一振动系统和第二振动系统，所述磁路系统包括位于中间位置的第一中心磁轭、固定于所述第一中心磁轭的中心磁钢、环设于所述中心磁钢且固定于所述盆架的磁性组件以及连接所述第一中心磁轭与所述磁性组件的连接部，所述中心磁钢与所述磁性组件间隔形成磁间隙；所述中心磁钢包括固定于所述第一中心磁轭的第一磁体部以及固定于所述第一磁体部远离所述第一中心磁轭一侧的第二磁体部，所述第一磁体部沿振动方向的投影面积大于所述第二磁体部沿振动方向的投影面积。通过设置投影面积比第二磁体部更大的第一磁体部，有效增大了中心磁钢的体积，在有限的空间设计中提升了磁路系统的磁场性能，从而提升了发声器件的声学性能。
以上所述的仅是本实用新型的实施方式，在此应当指出，对于本领域的普通技术人员来说，在不脱离本实用新型创造构思的前提下，还可以做出改进，但这些均属于本实用新型的保护范围。

Claims (10)

  1. 一种发声器件，其包括具有收容空间的盆架、收容于所述收容空间内的磁路系统以及分别设于所述磁路系统两侧的第一振动系统和第二振动系统，其特征在于：
    所述磁路系统包括位于中间位置的第一中心磁轭、固定于所述第一中心磁轭的中心磁钢、环设于所述中心磁钢且固定于所述盆架的边磁钢组件以及连接所述第一中心磁轭与所述边磁钢组件的连接部，所述中心磁钢与所述边磁钢组件间隔形成磁间隙；
    所述第一振动系统包括固定于所述盆架的第一振膜以及驱动所述第一振膜振动发声的第一音圈，所述第一音圈插设于所述磁间隙；
    所述第二振动系统包括固定于所述盆架的第二振膜以及驱动所述第二振膜振动发声的第二音圈，所述第二音圈插设于所述磁间隙；
    所述中心磁钢包括固定于所述第一中心磁轭的第一磁体部以及固定于所述第一磁体部远离所述第一中心磁轭一侧的第二磁体部，所述第一磁体部沿振动方向的投影面积大于所述第二磁体部沿振动方向的投影面积。
  2. 根据权利要求1所述的发声器件，其特征在于，所述磁间隙包括由所述第一磁体部与所述边磁钢组件间隔设置形成的第一磁间隙以及由所述第二磁体部与所述边磁钢组件间隔设置形成的第二磁间隙，所述第一音圈插设于所述第一磁间隙，所述第二音圈插设于所述第二磁间隙。
  3. 根据权利要求2所述的发声器件，其特征在于，所述边磁钢组件包括固定于所述盆架的边磁钢、固定于所述边磁钢朝向所述第一振膜一侧的第一边导磁板以及固定于所述边磁钢朝向所述第二振膜一侧的第二边导磁板，所述连接部连接所述第二边导磁板和所述第一中心磁轭。
  4. 根据权利要求3所述的发声器件，其特征在于，所述连接部包括与所述第一中心磁轭连接的第一连接部与所述第二边导磁板连接的第二连接部以及连接所述第一连接部和所述第二连接部的第三连接部，所述第一连接部固定于所述第一中心磁轭朝向所述中心磁钢的表面，所述第二连接部固定于所述第二边导磁板朝向所述第一中心磁轭的表面。
  5. 根据权利要求4所述的发声器件，其特征在于，所述第三连接部沿振动方向延伸。
  6. 根据权利要求5所述的发声器件，其特征在于，所述盆架呈矩形，所述连接部连接于所述第二边导磁板和所述第一中心磁轭沿短轴方向的边缘。
  7. 根据权利要求1所述的发声器件，其特征在于，所述磁路系统还包括固定于所述第二磁体部远离所述第一中心磁轭一侧的第二中心磁轭。
  8. 根据权利要求6所述的发声器件，其特征在于，所述盆架包括相互连接的第一支架和第二支架，所述第一振膜固定于所述第一支架远离所述第二支架的表面，所述第二振膜固定于所述第二支架远离所述第一支架的表面。
  9. 根据权利要求6所述的发声器件，其特征在于，所述边磁钢包括沿长轴方向设置的第一边磁钢以及沿短轴方向设置的第二边磁钢。
  10. 根据权利要求9所述的发声器件，其特征在于，所述第一边磁钢包括四个，所述盆架的每一长轴方向设置有两个所述第一边磁钢。
PCT/CN2022/114673 2022-08-25 2022-08-25 发声器件 WO2024040490A1 (zh)

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008092030A (ja) * 2006-09-29 2008-04-17 Matsushita Electric Ind Co Ltd スピーカ
CN210351610U (zh) * 2019-05-21 2020-04-17 瑞声科技(新加坡)有限公司 扬声器
CN211321493U (zh) * 2019-12-25 2020-08-21 瑞声科技(新加坡)有限公司 一种双面发声扬声器
CN213126461U (zh) * 2020-09-25 2021-05-04 瑞声科技(新加坡)有限公司 发声单体、扬声器及电子终端
CN214591964U (zh) * 2021-02-09 2021-11-02 益阳市信维声学科技有限公司 一种新式结构的双驱动双面发声微型扬声器

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008092030A (ja) * 2006-09-29 2008-04-17 Matsushita Electric Ind Co Ltd スピーカ
CN210351610U (zh) * 2019-05-21 2020-04-17 瑞声科技(新加坡)有限公司 扬声器
CN211321493U (zh) * 2019-12-25 2020-08-21 瑞声科技(新加坡)有限公司 一种双面发声扬声器
CN213126461U (zh) * 2020-09-25 2021-05-04 瑞声科技(新加坡)有限公司 发声单体、扬声器及电子终端
CN214591964U (zh) * 2021-02-09 2021-11-02 益阳市信维声学科技有限公司 一种新式结构的双驱动双面发声微型扬声器

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